CN202986822U - Rear axle drive assembly of electric vehicle - Google Patents

Rear axle drive assembly of electric vehicle Download PDF

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Publication number
CN202986822U
CN202986822U CN 201220673219 CN201220673219U CN202986822U CN 202986822 U CN202986822 U CN 202986822U CN 201220673219 CN201220673219 CN 201220673219 CN 201220673219 U CN201220673219 U CN 201220673219U CN 202986822 U CN202986822 U CN 202986822U
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CN
China
Prior art keywords
gear
power
transmission
axle
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220673219
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Chinese (zh)
Inventor
蒋辉
王吉龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Longwang Electromechanical Co Ltd
Original Assignee
Chongqing Longwang Electromechanical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chongqing Longwang Electromechanical Co Ltd filed Critical Chongqing Longwang Electromechanical Co Ltd
Priority to CN 201220673219 priority Critical patent/CN202986822U/en
Application granted granted Critical
Publication of CN202986822U publication Critical patent/CN202986822U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a rear axle drive assembly of an electric vehicle. A power output end of a gear speed changer is in transmission fit with a power input end of a differential mechanism; and power is correspondingly output to a left wheel axle and a right wheel axle through a left half axle and a right half axle of the differential mechanism. According to the rear axle drive assembly, the power is directly input to the differential mechanism by a speed change drive assembly, a speed change system and a drive assembly are mounted on a rear axle, the structure is simple and compact, the transmission efficiency is more obviously improved as a transmission chain is shortened, the transmission interference caused by vibration is avoided due to better integrity, a formed product is directly applied to three-wheeled electric vehicles and four-wheeled electric vehicles, and the rear axle drive assembly is better suitable for small electric vehicles due to better integrated performance; meanwhile, the power output is reasonably distributed when the electric vehicle runs on the flat road or the slope due to the adoption of a gear speed change system; and compared with the prior art, the power consumption in the climbing process is reduced, the motor power is fully utilized when the electric vehicle runs on the flat road, and the usage cost is reduced while the purposes of energy saving and environmental protection are achieved.

Description

Motor rear axle drives assembly
Technical field
The utility model relates to a kind of automotive component, and particularly a kind of motor rear axle drives assembly.
Background technology
Battery-driven car (two-wheeled, three-wheel and electronlmobil) travels take vehicle-mounted power accumulator as the power driven elec. vehicle, and to have energy-saving and environmental protection light due to battery-driven car, and operating costs is lower, more and more comes into one's own.
Battery-driven car generally comprises power supply, electrical motor, change-speed box, walking assembly and control system, and due to the operation characteristic of electrical motor, the change-speed box of battery-driven car does not generally adopt the gear speed change, directly comes regulation speed by the control and regulation motor speed; And for the larger uphill way of output torque, utilize existing single speed changer structure, can only increase the purpose that electric weight output reaches climbing, can cause the more waste of electric weight, and, owing to travelling in the level land of considering that speed changer structure is more, thereby, increase electric weight output unsatisfactory for the effect that climbing reaches, even sometimes the motor rotation blockage phenomenon can occur.
And in existing battery-driven car driving structure, messenger chain is longer, and structural arrangement is compact not, makes the car load driving efficiency lower, and is not suitable for small-sized electric car, and particularly three-wheeled electric vehicle uses.
Therefore, need to drive assembly to existing battery-driven car improves, employing has the speed change system of gear, make battery-driven car rational allocation power output when level land and climbing, compared with prior art, the consumption of power when reducing to climb takes full advantage of motor power during the level land, when reaching energy-conserving and environment-protective, reduce use cost; Simultaneously, simple and compact for structure, driving efficiency is high, the better small-sized electric car that is applicable to.
The utility model content
In view of this, the utility model provides a kind of motor rear axle to drive assembly, employing has the speed change system of gear, make battery-driven car rational allocation power output when level land and climbing, compared with prior art, the consumption of power when reducing to climb takes full advantage of motor power during the level land, when reaching energy-conserving and environment-protective, reduce use cost; Simultaneously, simple and compact for structure, driving efficiency is high, the better small-sized electric car that is applicable to.
Motor rear axle of the present utility model drives assembly, comprise revolver axle, right wheel shaft, diff and driving speed changing assembly, described driving speed changing assembly includes shift transmission and power motor, described have the clutch end of shift transmission to coordinate with the power intake transmission of diff, and described diff exports the power correspondence to revolver axle and right wheel shaft by its left half axle and right axle shaft.
Further, the clutch end of described driving speed changing assembly is power output gear, diff be provided with as its power intake and with the diff input gear of power output gear engagement;
Further, described have shift transmission to be provided with case of transmission, described diff is installed in case of transmission, the diff input gear coordinates with the differential casing transmission of diff, the two ends, left and right of the differential casing that coordinates with diff planet gear transmission normal-running fit respectively are supported in case of transmission, and the left sun wheel of diff and the corresponding left half axle of right sun wheel and right axle shaft normal-running fit respectively are placed in differential casing in coaxial and are used for outputting power;
Further, described have shift transmission to comprise main transformer speed driving system and with the planet circular system of power transmission to main transformer speed driving system; Described main transformer speed driving system is provided with power input shaft, and the pinion carrier of described planet circular system coordinates with the power input shaft transmission as the clutch end of planet circular system, and described planet circular system is by its sun wheel input power;
Further, planet circular system is provided with the planet circular system housing, and the internally toothed annulus of described case of transmission, planet circular system housing and planet circular system is connected to one; Described sun wheel transmission cooperation is coated at a sun wheel shaft, described sun wheel shaft and planet circular system housing normal-running fit and to stretch out epicyclic train shell external for coordinating input power with the rotor transmission of power motor, described power motor is fixedly connected on the planet circular system housing;
Further, described pinion carrier is provided with the integrally formed drive shaft sleeve that is provided with that stretches out, and described drive shaft sleeve is coated at power input shaft and coordinates with its transmission by spline; The satellite gear normal-running fit of described planet circular system is coated on the planet wheel spindle that is fixed with on pinion carrier;
Further, main transformer speed driving system is two gear variable ratio drive systems, comprise power input shaft, power take-off shaft, soon keep off driving gear, soon keep off driven gear, keep off driving gear and keep off slowly driven gear slowly, described power take-off shaft and power input shaft are respectively being arranged at housing around the mode that self axis rotates; Described fast gear driven gear and the engagement of fast gear driving gear, describedly keep off slowly driven gear and keep off slowly the driving gear engagement, described fast gear driving gear and keep off slowly driving gear respectively transmission be equipped with in power input shaft, keep off soon driven gear and keep off slowly driven gear and be set in rotation with respectively power take-off shaft, be coated at power take-off shaft in fast gear driven gear and the mode with the circumferencial direction transmission that can endwisely slip of keeping off slowly between driven gear and be provided with the adapter of putting into gear, the described adapter of putting into gear can or keep off slowly driven gear with fast gear driven gear and engage respectively transmission;
Further, keep off soon driven gear and keep off slowly driven gear and be set in rotation with power take-off shaft by the needle bearing of correspondence respectively;
Further, described planet circular system housing comprises housing body and gland, and described internally toothed annulus fixedly is pressed on housing body by gland;
Further, the pinion carrier of described planet circular system is integrally formed as clutch end and the power input shaft of planet circular system.
The beneficial effects of the utility model: motor rear axle of the present utility model drives assembly, drive speed changing assembly and directly power is inputed to diff, this speed change system and driving assembly are installed on back axle, simple and compact for structure, owing to having shortened messenger chain, significantly improved driving efficiency, and has stronger globality, the transmission of avoiding causing due to vibrations is disturbed, directly apply to three-wheeled electric vehicle and four-wheel electric motor car after forming product, has integrated performance preferably, the better small-sized electric car that is applicable to; Simultaneously, adopt the speed change system that gear is arranged, make battery-driven car rational allocation power output when level land and climbing, compared with prior art, the consumption of power when reducing to climb takes full advantage of motor power during the level land, when reaching energy-conserving and environment-protective, reduces use cost.
Description of drawings
Below in conjunction with drawings and Examples, the utility model is further described.
Fig. 1 is the utility model structural representation;
Fig. 2 is for there being the shift transmission structural representation.
The specific embodiment
Fig. 1 is structural representation of the present utility model, Fig. 2 is for there being the shift transmission structural representation, as shown in the figure: the motor rear axle of the present embodiment drives assembly, comprise revolver axle 27, right wheel shaft 28, diff 4 and drive speed changing assembly, described driving speed changing assembly includes shift transmission and power motor 25, described have the clutch end of shift transmission to coordinate with the power intake transmission of diff 4, and described diff 4 exports the power correspondence to revolver axle 27 and right wheel shaft 28 by its left half axle and right axle shaft; As shown in the figure, revolver axle 27 and right wheel shaft 28 lay respectively in corresponding left axle housing 25 and right axle housing 29, and with transmission of power to left wheel and right wheel, left axle housing 25 and right axle housing 29 and transmission of power to the structure of wheel belongs to prior art, does not repeat them here.
In the present embodiment, the clutch end of described driving speed changing assembly is power output gear, diff be provided with as its power intake and with the diff input gear of power output gear engagement; Adopt the gear Meshing Pair that power is inputed to diff, driving efficiency is high, compact conformation.
In the present embodiment, described have shift transmission to be provided with case of transmission 13, described diff 4 is installed in case of transmission 13, diff input gear 5 coordinates with differential casing 7 transmissions of diff 4, the two ends, left and right of the differential casing 7 that coordinates with diff planet gear transmission normal-running fit respectively are supported in case of transmission 13, as shown in the figure, diff 4 is the structure of prior art, the sun wheel (figure is left sun wheel 3 and right sun wheel 7) that comprises satellite gear and be used for outputing power does not repeat them here; The left sun wheel 3 of diff 4 and the corresponding left half axle of right sun wheel 7 and right axle shaft normal-running fit respectively are placed in differential casing 7 in coaxial and are used for outputting power;
In the present embodiment, described have shift transmission to comprise main transformer speed driving system and with the planet circular system of power transmission to main transformer speed driving system; Described main transformer speed driving system is provided with power input shaft 1, and the pinion carrier 17 of described planet circular system coordinates with power input shaft 1 transmission as the clutch end of planet circular system, and described planet circular system is by its sun wheel 22 input powers; The structure that adopts main transformer speed driving system and power transmission to the planet circular system of main transformer speed driving system is combined, and the power output planetary frame of planet circular system and the power input shaft of main transformer speed system are integrally formed, increase load-carrying capacity, transmitted power scope and the transmission range of motor and driving system, owing to having avoided the transmission sudden change, reduce running noises, the raising driving efficiency is high and extend the life-span of driving system.
In the present embodiment, planet circular system is provided with the planet circular system housing, and the internally toothed annulus 21 of described case of transmission 13, planet circular system housing and planet circular system is connected to one, and forms the one-piece construction of sealing, has integration preferably; Described sun wheel transmission cooperation is coated at a sun wheel shaft 23, described sun wheel shaft 23 and planet circular system housing normal-running fit and to stretch out epicyclic train shell external for coordinating input power with the rotor transmission of power motor 1, described power motor 25 is fixedly connected on the planet circular system housing; Simple and compact for structure, Assembly ﹠Disassembly is convenient, and use cost is saved in convenient for maintaining and maintenance.
In the present embodiment, described pinion carrier 17 is provided with the integrally formed drive shaft sleeve 17a that is provided with that stretches out, and described drive shaft sleeve 17a is coated at power input shaft 1 and coordinates with its transmission by spline; Be that drive shaft sleeve 17a is provided with female splines, power input shaft is provided with the male splines that is mated; Satellite gear 20 normal-running fiies of described planet circular system are coated on the planet wheel spindle 19 that is fixed with on pinion carrier 17.
in the present embodiment, main transformer speed driving system is two gear variable ratio drive systems, described two gear variable ratio drive systems comprise power input shaft 1, power take-off shaft 10, fast gear driving gear 14, fast gear driven gear 8, slowly keep off driving gear 12 and keep off slowly driven gear 11, described fast gear driven gear 8 and fast gear driving gear 14 engagements, describedly keep off slowly driven gear 11 and keep off slowly driving gear 12 engagements, described fast gear driving gear 14 and keep off slowly driving gear 12 respectively transmission be equipped with in power input shaft 1, it can be integrally formed structure, can be also that split type employing assembly technology is installed, keep off soon driven gear 8 and keep off slowly driven gear 11 and be set in rotation with respectively power take-off shaft 10, be coated at power take-off shaft 10 in fast gear driven gear 8 and the mode with the circumferencial direction transmission that can endwisely slip of keeping off slowly between driven gear 11 and be provided with the adapter 9 of putting into gear, the described adapter 9 of putting into gear can or keep off slowly driven gear 11 with fast gear driven gear 8 and engage respectively transmission, as shown in the figure, put into gear adapter 9 at fast gear driven gear 8 and keep off slowly between driven gear 11, the adapter 9 of putting into gear is provided with external tooth, fast gear driven gear 8 and keep off slowly driven gear 11 and be respectively equipped with the internal tooth that can mesh with this external tooth, the adapter 9 of putting into gear is the neutral position when the centre, and axially slip is completed with fast gear driven gear 8 or keeps off slowly engaging and transmission of driven gear 11 under external force drives, certainly, the adapter 9 of putting into gear, keep off driven gear 8 and keep off slowly soldered tooth and the juncture that driven gear 11 is equipped with necessary joint transmission and all belong to prior art soon, do not repeat them here, the structure that employing puts into gear adapter 9, keep off driven gear 8 and keep off slowly driven gear 11 soon realizes shift speed change, and simple and compact for structure, cost of manufacture is low, be applicable to light battery-driven car, be beneficial to the relative reduce integral vehicle cost, and compare with existing battery-driven car, cost there is no more increase.
In the present embodiment, as shown in the figure, keep off soon driven gear 8 and keep off slowly driven gear 11 and be set in rotation with power take-off shaft 10, compact conformation by corresponding needle bearing (needle bearing 15 and needle bearing 16) respectively, rotational stability is good, is suitable for stablizing smooth and easy and vibrates little transmission.
In the present embodiment, described planet circular system housing comprises housing body 18 and gland 24, and described internally toothed annulus fixedly is pressed on housing body 18 by gland 24; As shown in the figure, described planet circular system housing comprises housing body 18 and gland 24, and described internally toothed annulus 21 fixedly is pressed on housing body 18 by gland 24, forms the one-piece construction of sealing, has integration preferably.
Certainly, the pinion carrier 17 of described planet circular system can be integrally formed with power input shaft 1 as the clutch end of planet circular system, prerequisite lower volume and not obvious increase that whole messenger chain structure makes this structure in preposition speed change be, and transmission is stable, and the Efficiency Decreasing of avoiding the intermediate transmission auxiliary connection to cause makes whole drive system structure firm, globality is strong, and have integration preferably, maintain easily and overhaul, and reduce manufacturing cost and Fabrication procedure.
In the utility model, the annular bearing with rolling contact by necessity between the two ends of power input shaft 1 and power take-off shaft 10 and differential casing 6 and housing 13 carries out normal-running fit, belongs to the fit structure of prior art, does not repeat them here; In the utility model, transmission coordinates the mode that refers to transferring power to coordinate, and comprises engaged transmission, spline drived cooperation etc.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.

Claims (10)

1. a motor rear axle drives assembly, it is characterized in that: comprise revolver axle, right wheel shaft, diff and driving speed changing assembly, described driving speed changing assembly includes shift transmission and power motor, described have the clutch end of shift transmission to coordinate with the power intake transmission of diff, and described diff exports the power correspondence to revolver axle and right wheel shaft by its left half axle and right axle shaft.
2. motor rear axle according to claim 1 drives assembly, and it is characterized in that: the clutch end of described driving speed changing assembly is power output gear, diff be provided with as its power intake and with the diff input gear of power output gear engagement.
3. motor rear axle according to claim 2 drives assembly, it is characterized in that: described have shift transmission to be provided with case of transmission, described diff is installed in case of transmission, the diff input gear coordinates with the differential casing transmission of diff, the two ends, left and right of the differential casing that coordinates with diff planet gear transmission normal-running fit respectively are supported in case of transmission, and the left sun wheel of diff and the corresponding left half axle of right sun wheel and right axle shaft normal-running fit respectively are placed in differential casing in coaxial and are used for outputting power.
4. motor rear axle according to claim 3 drives assembly, it is characterized in that: described have shift transmission to comprise main transformer speed driving system and with the planet circular system of power transmission to main transformer speed driving system; Described main transformer speed driving system is provided with power input shaft, and the pinion carrier of described planet circular system coordinates with the power input shaft transmission as the clutch end of planet circular system, and described planet circular system is by its sun wheel input power.
5. motor rear axle according to claim 4 drives assembly, and it is characterized in that: planet circular system is provided with the planet circular system housing, and the internally toothed annulus of described case of transmission, planet circular system housing and planet circular system is connected to one; Described sun wheel transmission cooperation is coated at a sun wheel shaft, described sun wheel shaft and planet circular system housing normal-running fit and to stretch out epicyclic train shell external for coordinating input power with the rotor transmission of power motor, described power motor is fixedly connected on the planet circular system housing.
6. motor rear axle according to claim 5 drives assembly, and it is characterized in that: described pinion carrier is provided with the integrally formed drive shaft sleeve that is provided with that stretches out, and described drive shaft sleeve is coated at power input shaft and coordinates with its transmission by spline; The satellite gear normal-running fit of described planet circular system is coated on the planet wheel spindle that is fixed with on pinion carrier.
7. the described motor rear axle of arbitrary claim of according to claim 4 to 6 drives assembly, it is characterized in that: main transformer speed driving system is two gear variable ratio drive systems, comprise power input shaft, power take-off shaft, soon keep off driving gear, soon keep off driven gear, keep off driving gear and keep off slowly driven gear slowly, described power take-off shaft and power input shaft are respectively being arranged at housing around the mode that self axis rotates; Described fast gear driven gear and the engagement of fast gear driving gear, describedly keep off slowly driven gear and keep off slowly the driving gear engagement, described fast gear driving gear and keep off slowly driving gear respectively transmission be equipped with in power input shaft, keep off soon driven gear and keep off slowly driven gear and be set in rotation with respectively power take-off shaft, be coated at power take-off shaft in fast gear driven gear and the mode with the circumferencial direction transmission that can endwisely slip of keeping off slowly between driven gear and be provided with the adapter of putting into gear, the described adapter of putting into gear can or keep off slowly driven gear with fast gear driven gear and engage respectively transmission.
8. motor rear axle according to claim 7 drives assembly, it is characterized in that: keep off soon driven gear and keep off slowly driven gear being set in rotation with power take-off shaft by the needle bearing of correspondence respectively.
9. motor rear axle according to claim 8 drives assembly, and it is characterized in that: described planet circular system housing comprises housing body and gland, and described internally toothed annulus fixedly is pressed on housing body by gland.
10. motor rear axle according to claim 5 drives assembly, and it is characterized in that: the pinion carrier of described planet circular system is integrally formed as clutch end and the power input shaft of planet circular system.
CN 201220673219 2012-12-07 2012-12-07 Rear axle drive assembly of electric vehicle Expired - Fee Related CN202986822U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220673219 CN202986822U (en) 2012-12-07 2012-12-07 Rear axle drive assembly of electric vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220673219 CN202986822U (en) 2012-12-07 2012-12-07 Rear axle drive assembly of electric vehicle

Publications (1)

Publication Number Publication Date
CN202986822U true CN202986822U (en) 2013-06-12

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CN 201220673219 Expired - Fee Related CN202986822U (en) 2012-12-07 2012-12-07 Rear axle drive assembly of electric vehicle

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103010016A (en) * 2012-12-07 2013-04-03 重庆隆旺机电有限责任公司 Rear axle driving assembly for electrocar
CN103277468A (en) * 2013-06-24 2013-09-04 苍南县鑫仲电动车配件有限公司 Vehicle
CN105299144A (en) * 2015-10-23 2016-02-03 陕西东铭车辆系统股份有限公司 Two-level arc tooth high-speed-ratio electric vehicle rear axle speed reducer assembly
CN106553524A (en) * 2015-09-25 2017-04-05 舍弗勒技术股份两合公司 A kind of e-shaft drive system and automobile

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103010016A (en) * 2012-12-07 2013-04-03 重庆隆旺机电有限责任公司 Rear axle driving assembly for electrocar
CN103010016B (en) * 2012-12-07 2016-08-17 重庆隆旺机电有限责任公司 Motor rear axle drive assembly
CN103277468A (en) * 2013-06-24 2013-09-04 苍南县鑫仲电动车配件有限公司 Vehicle
CN106553524A (en) * 2015-09-25 2017-04-05 舍弗勒技术股份两合公司 A kind of e-shaft drive system and automobile
CN105299144A (en) * 2015-10-23 2016-02-03 陕西东铭车辆系统股份有限公司 Two-level arc tooth high-speed-ratio electric vehicle rear axle speed reducer assembly

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130612

Termination date: 20161207